thymine
adenine
cytosine
guanine
Explanation:
uracil is not because uracil is only RNA.
To solve this problem on genetic dominance, we will need a punnet square.
Let's let P represent purple-flowered and p represent white-flowered.
We have one purple flowered plant with the alleles PP, and we have one white flowered plant with the alleles pp. Using a punnet square, we can determine the alleles of the offspring.
<u>P</u> <u>P</u>
p| Pp Pp
p | Pp Pp
As we can tell from our punnet square, all of our offspring will have purple flowers. This is because the purple-flower allele is dominant and the white-flowered allele is recessive.
Since each flower has a dominant and recessive allele, they are heterozygous.
Therefore, the solution to this problem is D.
Explanation:
Biodiversity refers to the diversity of biology or living organisms on Earth. The biodiversity is responsible for maintaining various biogeochemical on this planet.
The biodiversity has been drastically affected by the anthropogenic factors which has caused the deterioration of biodiversity.
The main anthropogenic factors are:
1. Habitat fragmentation: the human activities like construction of road passing through the habitat for organisms can lead to habitat fragmentation which could decrease the gene flow in the species.
2. Deforestation: the cutting of trees has led to the extinction of species.
3. Climate change : Global warming is the result of the industrial revolution initiated by humans in 19th century.
4. Exploitation of natural resources: the humans have continuously exploited human resources for their use.
5. Hunting of animals: The hunting of animals is one of the major factor for extinction of animals.
Answer:
Yes
Explanation:
Muscular strength in general (including respiratory muscles) is developed by systematic training, so it is assumed that it has a positive effect on the lung function. Recent studies have shown that athletes have larger capacity of the respiratory system when compared to their age-matched sedentary controls.
Answer: the reason is because fish live and eat the coral reef
Explanation: if the coral reef is dying the the fish population will die out and the coal reef can help with nutrient recycling
